package 
{
	public class Global
	{
		private static var _instance:Global;
		
		public var userName:String;
		
		public function Global(inside:Inside)
		{
			
		}
		
		public static function getInstance():Global
		{
			if(_instance == null){
				_instance = new Global(new Inside);
			}
			return _instance;
		}
	}
}class Inside{}